What's wrong with dressing sexy at work?

Please settle an argument. My daughter is bright, articulate, and ambitious. She is 26 and has worked her way up from an administrative-assistant job to loan officer at a large bank in Miami, and I really believe (okay, maybe I'm biased) that her talents and excellent people skills could take her all the way to the top. Just one problem: She dresses like a streetwalker. I have told her that wearing spike heels, ultra-short skirts, and low-cut blouses to the office will hurt her chances for advancement, but she says this is her style and she is sticking with it. Do you agree that she's making a mistake? If so, will you say so in your column? Maybe she'll listen to you.